Links:
[1] http://www.hege-elze.de/system/files/dokumente/1985%20Topogr%20Karte%201972%20Stand%201985%20Sorsum%20Wittenburg%20%281%29.tif
[2] http://www.hege-elze.de/system/files/dokumente/1985%20Topogr%20Karte%201972%20Stand%201985%20Sorsum%20Wittenburg%20%282%29.tif
[3] http://www.hege-elze.de/system/files/dokumente/1985%20Topogr%20Karte%201972%20Stand%201985%20Sorsum%20Wittenburg%20%283%29.tif
[4] http://www.hege-elze.de/dokumente/plan